The difference between a $50 dollar helmet and a $500 Arai, Shoei, Bell or 6D is one of the true mysteries in motorcycling. While parts upgrades, tires, knee braces and boots can all be tested by journalists and consumers through feeling and experience, with helmets this is simply not the case. That is unless you wish to smash your head into the ground at 50 mph and see which one leaves you with more brain damage... Arai Europe invited us the Arai Inspiration Centre in Holland, a testing facility used for dealer training, where the Japanese brand introduced its new MX-V motocross helmet to the public. Arai also provided some insight into the helmet design and testing process, as well as sharing its own philosophy on what makes a good helmet.